My comments on 1st drawing were made solely on the basis of observing conditions presented and comparing them with general guidelines for property width and length planning.
2nd drawing is far less pleasing aesthetically. Besides this, how can we compare the two?
1st step in property planning is determining public need for a new wash.
Tunnel in 1st is 150’ implying peak hour 150 or production frontier of 156,000 washes a year.
2nd drawing has 130’ implying peak 130 or 135,000 washes a year.
10 percent attraction for assisted-services implies peak hour 13 cars.
Working in teams of 2 people at 20-minutes per service requires 4 service bays and eight people to produce 12 express details an hour.
“if i decide to do make any portion express detail, i'll use the vacuum bays in the middle.”
Since a service bay should be at least 16’ wide, I believe you may be pre-planning a disaster.
This leads me to ask who is driving the wagon train.
1st drawing is typical of architects, technically correct and aesthetically pleasing but lacking understanding of complete model of the carwash industry.
2nd drawing is typical of dealer, pave entire site and see how much equipment can be squeezed onto the property. For example, vacuum spaces are 12’ wide whereas vacuum lane at full-service wash is 14’ wide.
Why 14’? So people can open all of the
doors and still have room to walk in between vehicles.
12’ wide is more appropriate for angled parking spaces. 11’ is like working in sardine can.
You have over 1.2 acres to work with and principal constraint is property width.
My advice would be to settle on a business model and then follow process instead of the other way around.